Mimi and Eddie are a couple of Wolf’s guenon monkeys who took up residence at the Sacramento Zoo this past fall. The pair soon rewarded the zoo with a newborn. This adorable little monkey was born on Jan. 26, an important birth because of how rare these animals are, and how little we know about them. There are precious few in zoos, and they’re hard to spot in the wild. The Wolf’s guenon has a furrowed brow that displays the monkey’s characteristic intelligence. (The Sacramento Bee)